Cypress Semiconductor MoBL CY62157EV30 Bedienungsanleitung PDF herunterladen (Seite 10)

CY62157EV30 MoBL

®

Document #: 38-05445 Rev. *H Page 10 of 17

Figure 10 shows WE Controlled, OE LOW write cycle waveforms.

[27]

Figure 10. Write Cycle No. 3

Figure 11 shows BHE/BLE Controlled, OE LOW write cycle waveforms.

[27]

Figure 11. Write Cycle No. 4

Switching Waveforms (continued)

VALID DATA

t

HD

t

SD

t

LZWE

t

PWE

t

SA

t

HA

t

AW

t

SCE

t

WC

t

HZWE

t

BW

NOTE 28

CE

1

ADDRESS

CE

2

WE

DATA I/O

BHE

/BLE

t

HD

t

SD

t

SA

t

HA

t

AW

t

WC

VALID DATA

t

BW

t

SCE

t

PWE

NOTE 28

CE

1

ADDRESS

CE

2

WE

DATA I/O

BHE

/BLE

Notes

27. If CE

1

goes HIGH and CE

2

goes LOW simultaneously with WE = V

IH

, the output remains in a high impedance state.

28. During this period, the I/Os are in output state. Do not apply input signals.

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